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authorLiam R. Howlett <Liam.Howlett@Oracle.com>2023-05-18 17:55:14 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-06-10 02:25:28 +0300
commit89f499f35c11af61ba7075ddc23209d10805a25a (patch)
tree1623b290f3aa7a8d348bc30fcd117ee51e2f06cb /lib
parentc3eb787e88e486eefcfafbf990df32c75018ca92 (diff)
downloadlinux-89f499f35c11af61ba7075ddc23209d10805a25a.tar.xz
maple_tree: add format option to mt_dump()
Allow different formatting strings to be used when dumping the tree. Currently supports hex and decimal. Link: https://lkml.kernel.org/r/20230518145544.1722059-6-Liam.Howlett@oracle.com Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Cc: David Binderman <dcb314@hotmail.com> Cc: Peng Zhang <zhangpeng.00@bytedance.com> Cc: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Vernon Yang <vernon2gm@gmail.com> Cc: Wei Yang <richard.weiyang@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/maple_tree.c87
-rw-r--r--lib/test_maple_tree.c10
2 files changed, 63 insertions, 34 deletions
diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index e095e2c39a1b..dfa0271101d2 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -5694,7 +5694,7 @@ void *mas_store(struct ma_state *mas, void *entry)
trace_ma_write(__func__, mas, 0, entry);
#ifdef CONFIG_DEBUG_MAPLE_TREE
if (mas->index > mas->last)
- pr_err("Error %lu > %lu %p\n", mas->index, mas->last, entry);
+ pr_err("Error %lX > %lX %p\n", mas->index, mas->last, entry);
MT_BUG_ON(mas->tree, mas->index > mas->last);
if (mas->index > mas->last) {
mas_set_err(mas, -EINVAL);
@@ -6748,22 +6748,33 @@ static void mas_dfs_postorder(struct ma_state *mas, unsigned long max)
/* Tree validations */
static void mt_dump_node(const struct maple_tree *mt, void *entry,
- unsigned long min, unsigned long max, unsigned int depth);
+ unsigned long min, unsigned long max, unsigned int depth,
+ enum mt_dump_format format);
static void mt_dump_range(unsigned long min, unsigned long max,
- unsigned int depth)
+ unsigned int depth, enum mt_dump_format format)
{
static const char spaces[] = " ";
- if (min == max)
- pr_info("%.*s%lu: ", depth * 2, spaces, min);
- else
- pr_info("%.*s%lu-%lu: ", depth * 2, spaces, min, max);
+ switch(format) {
+ case mt_dump_hex:
+ if (min == max)
+ pr_info("%.*s%lx: ", depth * 2, spaces, min);
+ else
+ pr_info("%.*s%lx-%lx: ", depth * 2, spaces, min, max);
+ break;
+ default:
+ case mt_dump_dec:
+ if (min == max)
+ pr_info("%.*s%lu: ", depth * 2, spaces, min);
+ else
+ pr_info("%.*s%lu-%lu: ", depth * 2, spaces, min, max);
+ }
}
static void mt_dump_entry(void *entry, unsigned long min, unsigned long max,
- unsigned int depth)
+ unsigned int depth, enum mt_dump_format format)
{
- mt_dump_range(min, max, depth);
+ mt_dump_range(min, max, depth, format);
if (xa_is_value(entry))
pr_cont("value %ld (0x%lx) [%p]\n", xa_to_value(entry),
@@ -6777,7 +6788,8 @@ static void mt_dump_entry(void *entry, unsigned long min, unsigned long max,
}
static void mt_dump_range64(const struct maple_tree *mt, void *entry,
- unsigned long min, unsigned long max, unsigned int depth)
+ unsigned long min, unsigned long max, unsigned int depth,
+ enum mt_dump_format format)
{
struct maple_range_64 *node = &mte_to_node(entry)->mr64;
bool leaf = mte_is_leaf(entry);
@@ -6785,8 +6797,16 @@ static void mt_dump_range64(const struct maple_tree *mt, void *entry,
int i;
pr_cont(" contents: ");
- for (i = 0; i < MAPLE_RANGE64_SLOTS - 1; i++)
- pr_cont("%p %lu ", node->slot[i], node->pivot[i]);
+ for (i = 0; i < MAPLE_RANGE64_SLOTS - 1; i++) {
+ switch(format) {
+ case mt_dump_hex:
+ pr_cont("%p %lX ", node->slot[i], node->pivot[i]);
+ break;
+ default:
+ case mt_dump_dec:
+ pr_cont("%p %lu ", node->slot[i], node->pivot[i]);
+ }
+ }
pr_cont("%p\n", node->slot[i]);
for (i = 0; i < MAPLE_RANGE64_SLOTS; i++) {
unsigned long last = max;
@@ -6799,24 +6819,32 @@ static void mt_dump_range64(const struct maple_tree *mt, void *entry,
break;
if (leaf)
mt_dump_entry(mt_slot(mt, node->slot, i),
- first, last, depth + 1);
+ first, last, depth + 1, format);
else if (node->slot[i])
mt_dump_node(mt, mt_slot(mt, node->slot, i),
- first, last, depth + 1);
+ first, last, depth + 1, format);
if (last == max)
break;
if (last > max) {
- pr_err("node %p last (%lu) > max (%lu) at pivot %d!\n",
+ switch(format) {
+ case mt_dump_hex:
+ pr_err("node %p last (%lx) > max (%lx) at pivot %d!\n",
node, last, max, i);
- break;
+ break;
+ default:
+ case mt_dump_dec:
+ pr_err("node %p last (%lu) > max (%lu) at pivot %d!\n",
+ node, last, max, i);
+ }
}
first = last + 1;
}
}
static void mt_dump_arange64(const struct maple_tree *mt, void *entry,
- unsigned long min, unsigned long max, unsigned int depth)
+ unsigned long min, unsigned long max, unsigned int depth,
+ enum mt_dump_format format)
{
struct maple_arange_64 *node = &mte_to_node(entry)->ma64;
bool leaf = mte_is_leaf(entry);
@@ -6841,10 +6869,10 @@ static void mt_dump_arange64(const struct maple_tree *mt, void *entry,
break;
if (leaf)
mt_dump_entry(mt_slot(mt, node->slot, i),
- first, last, depth + 1);
+ first, last, depth + 1, format);
else if (node->slot[i])
mt_dump_node(mt, mt_slot(mt, node->slot, i),
- first, last, depth + 1);
+ first, last, depth + 1, format);
if (last == max)
break;
@@ -6858,13 +6886,14 @@ static void mt_dump_arange64(const struct maple_tree *mt, void *entry,
}
static void mt_dump_node(const struct maple_tree *mt, void *entry,
- unsigned long min, unsigned long max, unsigned int depth)
+ unsigned long min, unsigned long max, unsigned int depth,
+ enum mt_dump_format format)
{
struct maple_node *node = mte_to_node(entry);
unsigned int type = mte_node_type(entry);
unsigned int i;
- mt_dump_range(min, max, depth);
+ mt_dump_range(min, max, depth, format);
pr_cont("node %p depth %d type %d parent %p", node, depth, type,
node ? node->parent : NULL);
@@ -6875,15 +6904,15 @@ static void mt_dump_node(const struct maple_tree *mt, void *entry,
if (min + i > max)
pr_cont("OUT OF RANGE: ");
mt_dump_entry(mt_slot(mt, node->slot, i),
- min + i, min + i, depth);
+ min + i, min + i, depth, format);
}
break;
case maple_leaf_64:
case maple_range_64:
- mt_dump_range64(mt, entry, min, max, depth);
+ mt_dump_range64(mt, entry, min, max, depth, format);
break;
case maple_arange_64:
- mt_dump_arange64(mt, entry, min, max, depth);
+ mt_dump_arange64(mt, entry, min, max, depth, format);
break;
default:
@@ -6891,16 +6920,16 @@ static void mt_dump_node(const struct maple_tree *mt, void *entry,
}
}
-void mt_dump(const struct maple_tree *mt)
+void mt_dump(const struct maple_tree *mt, enum mt_dump_format format)
{
void *entry = rcu_dereference_check(mt->ma_root, mt_locked(mt));
pr_info("maple_tree(%p) flags %X, height %u root %p\n",
mt, mt->ma_flags, mt_height(mt), entry);
if (!xa_is_node(entry))
- mt_dump_entry(entry, 0, 0, 0);
+ mt_dump_entry(entry, 0, 0, 0, format);
else if (entry)
- mt_dump_node(mt, entry, 0, mt_node_max(entry), 0);
+ mt_dump_node(mt, entry, 0, mt_node_max(entry), 0, format);
}
EXPORT_SYMBOL_GPL(mt_dump);
@@ -6953,7 +6982,7 @@ static void mas_validate_gaps(struct ma_state *mas)
mas_mn(mas), i,
mas_get_slot(mas, i), gap,
p_end, p_start);
- mt_dump(mas->tree);
+ mt_dump(mas->tree, mt_dump_hex);
MT_BUG_ON(mas->tree,
gap != p_end - p_start + 1);
@@ -6986,7 +7015,7 @@ counted:
MT_BUG_ON(mas->tree, max_gap > mas->max);
if (ma_gaps(p_mn, mas_parent_type(mas, mte))[p_slot] != max_gap) {
pr_err("gap %p[%u] != %lu\n", p_mn, p_slot, max_gap);
- mt_dump(mas->tree);
+ mt_dump(mas->tree, mt_dump_hex);
}
MT_BUG_ON(mas->tree,
diff --git a/lib/test_maple_tree.c b/lib/test_maple_tree.c
index f1db333270e9..d6929270dd36 100644
--- a/lib/test_maple_tree.c
+++ b/lib/test_maple_tree.c
@@ -219,7 +219,7 @@ static noinline void check_rev_seq(struct maple_tree *mt, unsigned long max,
#ifndef __KERNEL__
if (verbose) {
rcu_barrier();
- mt_dump(mt);
+ mt_dump(mt, mt_dump_dec);
pr_info(" %s test of 0-%lu %luK in %d active (%d total)\n",
__func__, max, mt_get_alloc_size()/1024, mt_nr_allocated(),
mt_nr_tallocated());
@@ -248,7 +248,7 @@ static noinline void check_seq(struct maple_tree *mt, unsigned long max,
#ifndef __KERNEL__
if (verbose) {
rcu_barrier();
- mt_dump(mt);
+ mt_dump(mt, mt_dump_dec);
pr_info(" seq test of 0-%lu %luK in %d active (%d total)\n",
max, mt_get_alloc_size()/1024, mt_nr_allocated(),
mt_nr_tallocated());
@@ -893,7 +893,7 @@ static noinline void check_alloc_range(struct maple_tree *mt)
#if DEBUG_ALLOC_RANGE
pr_debug("\tInsert %lu-%lu\n", range[i] >> 12,
(range[i + 1] >> 12) - 1);
- mt_dump(mt);
+ mt_dump(mt, mt_dump_hex);
#endif
check_insert_range(mt, range[i] >> 12, (range[i + 1] >> 12) - 1,
xa_mk_value(range[i] >> 12), 0);
@@ -934,7 +934,7 @@ static noinline void check_alloc_range(struct maple_tree *mt)
xa_mk_value(req_range[i] >> 12)); /* pointer */
mt_validate(mt);
#if DEBUG_ALLOC_RANGE
- mt_dump(mt);
+ mt_dump(mt, mt_dump_hex);
#endif
}
@@ -1572,7 +1572,7 @@ static noinline void check_node_overwrite(struct maple_tree *mt)
mtree_test_store_range(mt, i*100, i*100 + 50, xa_mk_value(i*100));
mtree_test_store_range(mt, 319951, 367950, NULL);
- /*mt_dump(mt); */
+ /*mt_dump(mt, mt_dump_dec); */
mt_validate(mt);
}